CN219224389U - Soil pressure test device - Google Patents

Abstract

The utility model provides a soil pressure test device which comprises a bottom plate and a box body fixed on the bottom plate, wherein a retaining plate is slidably arranged in the box body, one side of the box body is provided with a retaining plate, the retaining plate is connected with a horizontal driving mechanism, four pressure sensors which are linearly arranged are fixedly arranged on the retaining plate, a space with an open upper end is formed between the retaining plate and the retaining plate, a first pressing plate is slidably arranged along the depth direction of the box body, a second pressing plate is slidably arranged in the first pressing plate, and the second pressing plate is slidably matched with a T-shaped groove arranged on the retaining plate. According to the utility model, the soil retaining plate capable of sliding in the box body is arranged, so that the soil volume in the test can be flexibly adjusted, the structure is simple, and the operation is convenient.

Description

Soil pressure test device

Technical Field

The utility model belongs to the technical field of civil engineering test equipment, and particularly relates to a soil pressure test device.

Background

In the process of carrying out civil engineering construction, structures such as retaining walls, foundation pit supports, side slopes and the like, which are used for supporting soil bodies and preventing the soil bodies from moving, influence the construction progress and the safety of constructors. In the foundation pit supporting design process, a foundation pit with complex structure can be supported by adopting cantilever piles, the cantilever piles are required to be embedded into rock stratum to a certain depth, limited rock mass exists before and after the cantilever piles, and at the moment, the passive soil pressure of the cantilever piles is required to be theoretically solved, so that in order to clearly analyze the soil pressure, a special test device is required to be used for testing, and a conclusion is obtained.

The Chinese patent with publication number of CN108507878A discloses a soil pressure simulation test device and a soil pressure simulation test method, wherein the soil pressure simulation test device comprises a test box and supporting legs. The top ditching of test box, the test box include preceding baffle, backplate and can slide from top to bottom set up in preceding baffle with lower baffle between the backplate has baffle and regulation baffle along left and right sides sliding connection on the lower baffle, and regulation baffle is connected with actuating mechanism, and the test box intussuseption is filled with a plurality of layers of soil body simulators of evenly arranging from top to bottom. Although the utility model can perform the soil pressure simulation test, the soil quantity can not be adjusted, and the forces of different working conditions can be measured at the same time.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the soil pressure test device, which is provided with the soil retaining plate sliding in the box body, can flexibly adjust the soil volume during the test, can measure the forces of different working conditions and is convenient to use.

The technical scheme provided by the utility model is as follows: the utility model provides a soil pressure test device, includes the bottom plate and fixes the box on the bottom plate, slidable mounting has the board that keeps off in the box, one side of box is provided with the baffle board, the baffle board is connected with horizontal driving mechanism, fixed mounting has four pressure sensor that are linear arrangement on the baffle board, form an upper end open space between baffle board and the board that keeps off, follow the direction of depth slidable mounting of box has clamp plate one, clamp plate one inside slidable mounting has clamp plate two, clamp plate two and the T-shaped groove sliding fit that sets up on the board that keeps off.

Further, a beam is fixedly arranged above the soil-blocking plate, the beam passes through the box body and is slidably arranged on the box body, two ends of the beam are fixedly provided with horizontal sliding rods, the horizontal sliding rods are positioned on the outer surface of the long side surface of the bottom plate, a return spring III is arranged between the horizontal sliding rods and the box body, the upper end surface and the lower end surface of the horizontal sliding rods are slidably matched with guide rollers, the guide rollers are rotatably arranged on the box body, one horizontal sliding rod is fixedly provided with a boss and a T-shaped rod, the boss and the T-shaped rod are connected with a pushing mechanism, the horizontal sliding rods and the beam are pushed to slide on the box body through the pushing mechanism so that the beam drives the soil-blocking plate to slide in the box body,

furthermore, a pointer is fixedly arranged on the other horizontal sliding rod, a graduated scale is arranged below the pointer, and the graduated scale is fixedly arranged on the box body.

Further, pushing mechanism include the driving lever, the driving lever on be provided with the U-shaped groove, U-shaped groove and boss sliding fit, driving lever and T shape pole and carousel sliding fit, the carousel on be provided with two symmetrical arrangement's cylinder pole, the carousel rotate and install the lateral surface at the box, carousel and the output shaft fixed connection of motor, motor fixed mounting on the bottom plate.

Further, the upper end surfaces of the two ends of the cross beam are respectively and fixedly provided with a triangular block, the triangular blocks are right-angled triangles, the surface of one right-angle side of each triangular block is in contact fit with the upper end surface of the cross beam, and the triangular blocks are limited through a limiting mechanism.

Further, stop gear include two symmetrical arrangement's spacing stock, two spacing stock be located two horizontal slide bars top respectively, spacing stock on be provided with a plurality of perpendicular teeth that are linear arrangement, perpendicular tooth on inclined plane one with three angle block on inclined plane two inclination the same, three angle block and perpendicular tooth sliding fit, two spacing stock slidable mounting are in the lateral surface of box, and are provided with two reset spring one between spacing stock and the box, two spacing stock link together through the link, link slidable mounting on the box, the link on fixed mounting have the one end of reset bullet two, the other end fixed mounting of reset bullet two on the intermediate plate, intermediate plate fixed mounting on pneumatic cylinder one.

Further, a first rack is fixedly arranged on the cross beam, the first rack is connected with a second rack through a gear set, the second rack is fixedly arranged on the fixing frame, two ends of the fixing frame are slidably arranged on the box body, a second hydraulic cylinder is fixedly arranged at the center of the fixing frame, a long groove is formed along the length direction of the first pressing plate, and the long groove is in sliding fit with the extending end of the second hydraulic cylinder.

Further, the gear set comprises a first gear and a second gear which are rotatably arranged on the box body, the first gear is meshed with the first rack, the second gear is meshed with the second rack, and the first gear and the second gear are meshed with each other.

Further, horizontal actuating mechanism include pneumatic cylinder three, pneumatic cylinder three fixed mounting on the bottom plate, the extension of pneumatic cylinder three is served and is rotated and install the circular plate, the central axis of circular plate and the central axis coincidence of pneumatic cylinder three, the circular plate on the side slidable mounting of facing away from pneumatic cylinder three have two be the quarter butt of upper and lower symmetrical arrangement, the quarter butt install on the fender wallboard.

Further, the circular plate on be provided with the through-hole, the diameter of through-hole be greater than the diameter of short rod, just the central axis of through-hole and the central axis of circular plate the distance of the central axis of short rod and the central axis of circular plate equal.

Further, the box body is cuboid, the upper end face and one short side face of the box body are open, the height of the soil retaining plate is smaller than the depth of the box body, and the ratio of the moving speed of the first rack to the moving speed of the second rack is 2:1.

Compared with the prior art, the utility model has the beneficial effects that: (1) According to the utility model, the soil retaining plate capable of sliding in the box body is arranged, so that the volume of soil in a test can be flexibly adjusted, and the soil retaining plate is simple in structure and convenient to operate; (2) Four pressure sensors are arranged on the retaining wall board, so that the pressure value can be monitored in real time when the wall board extrudes soil, and the retaining wall board comprises three modes of translation, rotation around the bottom and rotation around the top, so that the device can adapt to the unused test requirements; (3) The limiting long rod is arranged above the horizontal sliding rod, so that the sliding of the horizontal sliding rod can be effectively limited, and the accuracy of a test is ensured.

Drawings

Fig. 1 is a front view of the overall structure of the present utility model.

Fig. 2 is a schematic view of a partial enlarged structure at a in fig. 1.

Fig. 3 is a schematic view of another angle structure of fig. 1.

Fig. 4 is a schematic view of a partial enlarged structure at B in fig. 3.

Fig. 5 is a top view of the overall structure of the present utility model.

Fig. 6 is a cross-sectional view taken along A-A in fig. 5.

Fig. 7 is a schematic view of a partial enlarged structure at C in fig. 6.

Fig. 8 is a schematic view of a partially enlarged structure at D in fig. 6.

In the figure: 1-a bottom plate; 2-a box body; 3-an electric motor; 4-a turntable; 5-a cylindrical rod; 6-a deflector rod; 7-U-shaped grooves; an 8-T shaped rod; 9-a horizontal slide bar; 10-a cross beam; 11-T-shaped slots; 12-a soil blocking plate; 13-pointer; 14-a graduated scale; 15-a guide roller; 16-triangular blocks; 17-limiting long rods; 18-a first return spring; 19-a connecting frame; 20-resetting the second bullet; 21-a first hydraulic cylinder; 22-an intermediate plate; 23-rack one; 24-gear one; 25-gear II; 26-a second rack; 27-fixing frame; 28-a second hydraulic cylinder; 29-first press plate; 30-a second pressing plate; 31-a wall baffle; 32-a pressure sensor; 33-short bar; 34-a circular plate; 35-through holes; 36-a hydraulic cylinder III; 37-a return spring III; 38-boss; 39-right angle teeth.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The soil pressure test device shown in fig. 1-8 comprises a bottom plate 1, wherein a cuboid box body 2 is fixedly arranged on the bottom plate 1, and the upper end face and the short side face of the box body 2 are open.

A soil-retaining plate 12 is arranged along the long side direction of the box body 2, the soil-retaining plate 12 is slidably arranged inside the box body 2, and the height of the soil-retaining plate 12 of the box body 2 is smaller than the depth of the box body 2; the open department of the side of minor face is provided with the fender wallboard 31 on box 2, and the barricade board 31 is connected with horizontal actuating mechanism, and fixed mounting has four pressure sensor 32 that are linear arrangement on the barricade board 31, forms an open space in upper end between barricade board 31 and the retaining board 12.

The first pressing plate 29 is slidably arranged along the depth direction of the box body 2, the first pressing plate 29 is positioned in the box body 2, the second pressing plate 30 is slidably arranged in the first pressing plate 29, the second pressing plate 30 is slidably matched with the T-shaped groove 11 arranged on the soil retaining plate 12, and the first pressing plate 29 and the second pressing plate 30 are positioned above a space formed by the soil retaining plate 31 and the soil retaining plate 12.

The horizontal sliding rod type soil-retaining device comprises a soil-retaining plate 12, a transverse beam 10 fixedly arranged above the soil-retaining plate 12, the transverse beam 10 penetrates through a box body 2 and is slidably arranged on the box body 2, horizontal sliding rods 9 are fixedly arranged at two ends of the transverse beam 10, the horizontal sliding rods 9 are positioned on the outer surfaces of the long side faces of a bottom plate 1, return springs III 37 are arranged between the horizontal sliding rods 9 and the box body 2, guide rollers 15 are slidably matched with the upper end face and the lower end face of the horizontal sliding rods 9, the guide rollers 15 are rotatably arranged on the box body 2, a boss 38 and a T-shaped rod 8 are fixedly arranged on one horizontal sliding rod 9, the boss 38 and the T-shaped rod 8 are connected with a pushing mechanism, the horizontal sliding rods 9 and the transverse beam 10 are pushed to slide on the box body 2 through the pushing mechanism, the transverse beam 10 drives the soil-retaining plate 12 to slide inside the box body 2, a pointer 13 is fixedly arranged on the other horizontal sliding rod 9, a graduated scale 14 is arranged below the pointer 13, and the graduated scale 14 is fixedly arranged on the box body 2.

The pushing mechanism comprises a deflector rod 6, a U-shaped groove 7 is formed in the deflector rod 6, the U-shaped groove 7 is in sliding fit with a boss 38, the deflector rod 6 and a T-shaped rod 8 are in sliding fit with a rotary disc 4, two symmetrically arranged cylindrical rods 5 are arranged on the rotary disc 4, the rotary disc 4 is rotatably mounted on the outer side face of the box body 2, the rotary disc 4 is fixedly connected with an output shaft of the motor 3, and the motor 3 is fixedly mounted on the bottom plate 1.

The upper end surfaces of the two ends of the cross beam 10 are respectively fixedly provided with a triangular block 16, the triangular blocks 16 are right-angled triangles, the surface of one right-angle side of each triangular block 16 is in contact fit with the upper end surface of the cross beam 10, and the triangular blocks 16 are limited by a limiting mechanism.

The limiting mechanism comprises two limiting long rods 17 which are symmetrically arranged, the two limiting long rods 17 are respectively located above the two horizontal sliding rods 9, a plurality of right-angle teeth 39 which are linearly arranged are arranged on the limiting long rods 17, the first inclined surfaces on the right-angle teeth 39 are identical to the second inclined surfaces on the triangular blocks 16 in inclination, the triangular blocks 16 are in sliding fit with the right-angle teeth 39, the two limiting long rods 17 are slidably mounted on the outer side face of the box body 2, two first reset springs 18 are arranged between the limiting long rods 17 and the box body 2, the two limiting long rods 17 are connected together through a connecting frame 19, the connecting frame 19 is slidably mounted on the box body 2, one end of a second reset spring 20 is fixedly mounted on the connecting frame 19, the other end of the second reset spring 20 is fixedly mounted on the middle plate 22, and the middle plate 22 is fixedly mounted on the first hydraulic cylinder 21.

Specifically, the link 19 and the intermediate plate 22 are slidable in the depth direction of the case 2.

The beam 10 is fixedly provided with a first rack 23, the first rack 23 is connected with a second rack 26 through a gear set, the second rack 26 is fixedly arranged on a fixed frame 27, two ends of the fixed frame 27 are slidably arranged on the box body 2, a second hydraulic cylinder 28 is fixedly arranged in the center of the fixed frame 27, a long groove is arranged along the length direction of the first pressing plate 29, and the long groove is slidably matched with the extending end of the second hydraulic cylinder 28.

Specifically, the gear set includes a first gear 24 and a second gear 25 rotatably mounted on the case 2, the first gear 24 is meshed with the first rack 23, the second gear 25 is meshed with the second rack 26, and the teeth

Wheel one 24 and gear two 25 are intermeshed. The ratio of the moving speed of the first rack 23 to the moving speed of the second rack 26 is 2:1.

The horizontal driving mechanism comprises a third hydraulic cylinder 36, the third hydraulic cylinder 36 is fixedly arranged on the bottom plate 1, a circular plate 34 is rotatably arranged on the extending end of the third hydraulic cylinder 36, the central axis of the circular plate 34 coincides with the central axis of the third hydraulic cylinder 36, two short rods 33 which are symmetrically arranged up and down are slidably arranged on one side, opposite to the third hydraulic cylinder 36, of the circular plate 34, and the short rods 33 are arranged on the baffle plate 31.

The circular plate 34 is provided with a through hole 35, the diameter of the through hole 35 is larger than the diameter of the stub 33, and the distance between the central axis of the through hole 35 and the central axis of the circular plate 34 is equal to the distance between the central axis of the stub 33 and the central axis of the circular plate 34.

The application method of the soil pressure test device comprises the following steps:

step one: starting the motor 3, enabling the motor 3 to drive the turntable 4 to rotate, poking the poking rod 6 or the T-shaped rod 8 through the cylindrical rod 5 on the turntable 4, enabling the horizontal sliding rod 9 to slide on the bottom plate 1 until the soil retaining plate 12 moves to a proper position in the box body 2, and limiting the soil retaining plate 12 through the limiting mechanism;

step two: when the second hydraulic cylinder 28 is started and the extending end of the second hydraulic cylinder 28 extends out, the first pressing plate 29 and the second pressing plate 30 can slide in the depth direction of the soil retaining plate 12 so as to adapt to soil with different thicknesses;

step three: soil used for the test was added between the soil blocking plate 31 and the soil blocking plate 12.

Step four: the third hydraulic cylinder 36 is started, the extending end of the third hydraulic cylinder 36 pushes the circular plate 34, the baffle plate is selectively translated, rotated around the bottom or rotated around the top according to the requirement, and the pressure detection result is obtained through the pressure sensor.

Working principle: according to the requirement of the test on the volume of soil, the motor 3 is started, the rotary table 4 fixedly arranged on the output shaft of the motor 3 rotates clockwise, the cylindrical rod 5 arranged on the rotary table 4 rotates, when the cylindrical rod 5 rotates to be in contact with the T-shaped rod 8 (as shown in figure 2), the T-shaped rod 8 is pushed to the right by the clockwise rotary cylindrical rod 5, because the T-shaped rod 8 is fixedly arranged on the horizontal sliding rod 9, the horizontal sliding rod 9 moves rightwards, the horizontal sliding rod 9 drives the cross beam 10 to slide on the box body 2, the retaining plate 12 fixedly arranged on the lower surface of the cross beam 10 moves rightwards, the retaining plate 12 is far away from the retaining plate 31, the volume of the soil filled in the space is increased, the other horizontal sliding rod 9 fixedly arranged at the other end of the cross beam 10 also moves, the pointer 13 on the horizontal sliding rod 9 also moves along the graduated scale 14, and the action of the graduated scale 14 can clearly show that the retaining plate 12 moves in the box body 2, and the observation distance is more convenient; when the rotary table 4 continues to rotate, the cylindrical rod 5 contacted with the T-shaped rod 8 gradually leaves the T-shaped rod 8, at this time, the other cylindrical rod 5 gradually approaches the deflector rod 6 and finally contacts with one end of the deflector rod 6, the cylindrical rod 5 and the deflector rod 6 slide, under the action of the cylindrical rod 5, the deflector rod 6 rotates anticlockwise (as shown in fig. 2), at this time, the U-shaped groove 7 arranged on the deflector rod 6 moves relative to the boss 38, so that the deflector rod 6 dials the boss 38 through the U-shaped groove 7, the boss 38 drives the horizontal slide rod 9 to move leftwards, at this time, the retaining plate 12 moves leftwards in the box 2, namely, the retaining plate 12 gradually blocks the wall plate 31, so that the space between the retaining plate 12 and the circular plate 34 becomes smaller, namely, the volume of soil required for testing is changed, in the process, the reset springs III 37 on two sides of the horizontal slide rod 9 deform, and simultaneously elasticity is generated, and the reset springs III 37 function to assist the reset of the horizontal slide rod 9. It should be noted that, the second pressing plate 30 is slidably engaged with the T-shaped groove 11 on the retaining plate 12, and the sliding direction of the second pressing plate 30 on the retaining plate 12 is along the depth direction of the retaining plate 12, so that when the retaining plate 12 moves rightward, the second pressing plate 30 slides out of the first pressing plate 29 and moves rightward, and when the retaining plate 12 moves leftward, the second pressing plate 30 moves leftward.

In addition, when the horizontal sliding rod 9 moves leftwards, the cross beam 10 fixedly connected with the horizontal sliding rod 9 also moves leftwards, and as the inclined plane II of the triangular block 16 arranged on the cross beam 10 is the same as the inclined plane I of the right-angle tooth 39 on the limit long rod 17 (as shown in figure 1), when the cross beam 10 and the triangular block 16 move leftwards, the inclined plane II of the triangular block 16 slides over the inclined plane II of the right-angle tooth 39 for a while and pushes the limit long rod 17 upwards gradually, so that the return spring I18 is compressed, meanwhile, the connecting frame 19 connected between the limit long rods 17 also moves upwards, and due to the existence of the return spring II 20, even if the extending end of the hydraulic cylinder I21 does not extend, the hydraulic cylinder I21 does not limit the connecting frame 19 to move upwards, and the return spring I18 is used for assisting the resetting of the limit long rod 17; when the horizontal sliding rod 9 moves rightwards, the right-angle edges of the right-angle teeth 39 on the limiting long rod 17 can block the right-angle edges on the triangular block 16, so that the triangular block 16 cannot move rightwards, at the moment, the first hydraulic cylinder 21 needs to be started, the extending end of the first hydraulic cylinder 21 extends out, the extending end of the first hydraulic cylinder 21 drives the middle plate 22 to slide upwards along the end face of the short side of the box body 2, the connecting frame 19 is pushed upwards through the second reset spring 20, the connecting frame 19 which moves upwards with the two symmetrically arranged limiting long rods 17, and then the right-angle teeth 39 on the limiting long rod 17 can leave the triangular block 16, so that the limitation on the triangular block 16 is eliminated, and the triangular block 16 can move rightwards. The purpose of this is, on the one hand, to be able to easily perform the position adjustment when the retaining plate 12 is to be moved to the left, without the need to activate the first hydraulic cylinder 21; on the other hand, when the retaining plate 12 is required to move rightwards, the hydraulic cylinder one 21 is required to be started due to the limit of the right-angle teeth 39; in addition, since the direction of the force applied by the third hydraulic cylinder 36 is rightward during the test, the limitation of the right-angled teeth 39 is also indispensable for preventing the movement of the retaining plate 12 itself.

During the process that the beam 10 moves rightwards with the retaining plate 12, the rack one 23 fixedly installed on the beam 10 also moves rightwards (as shown in fig. 6), during the rightwards movement of the rack one 23, the gear one 24 meshed with the rack one 23 rotates, the gear one 24 drives the gear two 25 to rotate, the gear two 25 dials the rack two 26 to enable the rack two 26 to move rightwards, and as the rack two 26 is fixedly connected with the fixing frame 27, the fixing frame 27 slides rightwards on the box body 2, the hydraulic cylinder two 28 on the fixing frame 27 moves rightwards together, and the extending end of the hydraulic cylinder two 28 moves rightwards along the long groove on the pressing plate one 29. It should be noted that, the moving speed of the rack two 26 is one half of the moving speed of the rack one 23, that is, the distance that the rack two 26 drives the fixing frame 27 to move is equal to one half of the distance that the beam 10 drives the retaining plate 12 to move in the same time, so that the hydraulic cylinder two 28 is always located in the middle of the space formed by the retaining plate 12 and the retaining wall plate 31, and thus when the extending end of the hydraulic cylinder two 28 extends, the stress of the pressing plate one 29 and the pressing plate two 30 is more uniform. And the first pressing plate 29 and the second pressing plate 30 can slide in the depth direction of the soil retaining plate 12, so that the soil with different thicknesses can be adapted.

After the distance between the retaining plate 12 and the retaining wall plate 31 is adjusted, test soil is added between the retaining wall plate 31 and the retaining plate 12.

After the soil for the test is added, the position of the through hole 35 on the circular plate 34 is adjusted according to a test mode, specifically, when the wall baffle 31 is required to translate, the circular plate 34 is rotated so that the central axis of the through hole 35 on the circular plate 34 does not coincide with the central axis of any one of the short rods 33, then the hydraulic cylinder III 36 is started, the extending end of the hydraulic cylinder III 36 pushes the circular plate 34, at the moment, the circular plate 34 presses the wall baffle 31 through the short rods 33, the wall baffle 31 is subjected to rightward force, at the moment, the wall baffle 31 is pressed with soil between the wall baffle 31 and the wall baffle 12, at the moment, the pressure sensor 32 fixedly arranged on the wall baffle 31 detects the pressure of the soil, and the detected pressure is vertically transmitted to a terminal; when the wall baffle 31 is required to rotate around the top, the central axis of the through hole 35 is overlapped with the central axis of the short rod 33 positioned above, so that when the circular plate 34 pushes the short rod 33, the circular plate 34 can only push the short rod 33 positioned below, and the short rod 33 positioned above can pass through the through hole 35; when the wall-blocking plate 31 is required to rotate around the bottom, the central axis of the through hole 35 is made to coincide with the central axis of the lower short rod 33, so that the circular plate 34 pushes the upper short rod 33 and the lower short rod 33 passes through the through hole 35.

Of course, during the test, the second hydraulic cylinder 28 may be activated so that the extended end of the second hydraulic cylinder 28 pushes the first platen 29, so that the first platen 29 and the second platen 30 are forced downward to squeeze the soil in front of the retaining plate 12 and the retaining wall 31, thereby generating pressure. It should be noted that it is possible for those skilled in the art to obtain the detection result of the pressure by a pressure sensor or the like and display the detection result by a computer.

The above description is merely illustrative of specific embodiments of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The utility model provides a soil pressure test device, includes bottom plate (1) and fixes box (2) on bottom plate (1), its characterized in that: the utility model discloses a soil retaining device, including box (2) and retaining plate, install retaining plate (12) in box (2), one side of box (2) is provided with retaining plate (31), retaining plate (31) are connected with horizontal actuating mechanism, fixed mounting has four pressure sensor (32) that are linear arrangement on retaining plate (31), form an upper end open space between retaining plate (31) and retaining plate (12), follow the degree of depth direction slidable mounting of box (2) has clamp plate one (29), clamp plate one (29) inside slidable mounting has clamp plate two (30), clamp plate two (30) and T-shaped groove (11) sliding fit that set up on retaining plate (12).

2. The soil pressure test apparatus of claim 1, wherein: the utility model discloses a soil guard plate, including box (2), horizontal slide bar (9), guide roll (15) are installed to horizontal slide bar (9) up and down two terminal surfaces, guide roll (15) are installed on box (2) in the rotation, fixed mounting has boss (38) and T shape pole (8) on one of them horizontal slide bar (9), boss (38) and T shape pole (8) are connected with pushing mechanism, and push horizontal slide bar (9) and crossbeam (10) slide on box (2) through pushing mechanism to make crossbeam (10) drive soil guard plate (12) inside slip in box (2).

3. The soil pressure test apparatus of claim 2, wherein: the other horizontal sliding rod (9) is fixedly provided with a pointer (13), a graduated scale (14) is arranged below the pointer (13), and the graduated scale (14) is fixedly arranged on the box body (2).

4. The soil pressure test apparatus of claim 2, wherein: push mechanism includes driving lever (6), be provided with U-shaped groove (7) on driving lever (6), U-shaped groove (7) and boss (38) sliding fit, driving lever (6) and T shape pole (8) and carousel (4) sliding fit, be provided with two symmetrical arrangement's cylinder pole (5) on carousel (4), carousel (4) rotate and install the lateral surface at box (2), carousel (4) and the output shaft fixed connection of motor (3), motor (3) fixed mounting is on bottom plate (1).

5. The soil pressure test apparatus of claim 2, wherein: the triangular block (16) is fixedly mounted on the upper end faces of the two ends of the cross beam (10), the triangular block (16) is in a right triangle shape, the face of one right-angle side of the triangular block (16) is in contact fit with the upper end face of the cross beam (10), and the triangular block (16) is limited through a limiting mechanism.

6. The soil pressure test apparatus of claim 5, wherein: the limiting mechanism comprises two limiting long rods (17) which are symmetrically arranged, the two limiting long rods (17) are respectively located above the two horizontal sliding rods (9), a plurality of right-angle teeth (39) which are linearly arranged are arranged on the limiting long rods (17), the first inclined surface on the right-angle teeth (39) is identical to the second inclined surface on the triangular block (16), the triangular block (16) is in sliding fit with the right-angle teeth (39), the two limiting long rods (17) are slidably mounted on the outer side face of the box body (2), two reset springs (18) are arranged between the limiting long rods (17) and the box body (2), the two limiting long rods (17) are connected together through a connecting frame (19), the connecting frame (19) is slidably mounted on the box body (2), one end of a reset spring II (20) is fixedly mounted on the connecting frame (19), and the other end of the reset spring II (20) is fixedly mounted on a middle plate (22), and the middle plate (22) is fixedly mounted on the first hydraulic cylinder (21).

7. The soil pressure test apparatus of claim 2, wherein: the novel hydraulic cylinder is characterized in that a first rack (23) is fixedly installed on the cross beam (10), the first rack (23) is connected with a second rack (26) through a gear set, the second rack (26) is fixedly installed on a fixing frame (27), two ends of the fixing frame (27) are slidably installed on a box body (2), a second hydraulic cylinder (28) is fixedly installed at the center of the fixing frame (27), long grooves are formed in the length direction of the first pressing plate (29), and the long grooves are in sliding fit with the extending ends of the second hydraulic cylinder (28).

8. The soil pressure test apparatus of claim 7, wherein: the gear set comprises a first gear (24) and a second gear (25) which are rotatably arranged on the box body (2), the first gear (24) is meshed with the first rack (23), the second gear (25) is meshed with the second rack (26), and the first gear (24) and the second gear (25) are meshed with each other.

9. The soil pressure test apparatus of claim 1, wherein: the horizontal driving mechanism comprises a hydraulic cylinder III (36), the hydraulic cylinder III (36) is fixedly arranged on the bottom plate (1), a circular plate (34) is rotatably arranged at the extending end of the hydraulic cylinder III (36), the central axis of the circular plate (34) coincides with the central axis of the hydraulic cylinder III (36), two short rods (33) which are vertically symmetrically arranged are slidably arranged on one side, opposite to the hydraulic cylinder III (36), of the circular plate (34), and the short rods (33) are arranged on the baffle plate (31).

10. The soil pressure test apparatus of claim 9, wherein: the circular plate (34) is provided with a through hole (35), the diameter of the through hole (35) is larger than that of the short rod (33), and the distance between the central axis of the through hole (35) and the central axis of the circular plate (34) is equal to that between the central axis of the short rod (33) and the central axis of the circular plate (34).

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